one of the factors which might contribute to Alzimerwater pH and its efficiency in cold water [7, 8]. Howeversome synthetic organic polymers such as acrylamide have neourotoxicity and strong carcinogenic effect [3, 5].Natural macromolecular coagulants are promising andhave attracted the attention of many researchers becauseof their abundant source, low price, multi-purposenessand biodegradation [7, 9, 10]. Okra, rice and chitosan arenatural compounds which have been used in turbidityremoval [11-13]. Moringa oleifera is a tree of Moringaceaefamily with 14 species. The seeds of moringa oleifera treeare used to reduce water turbidity in the countries allround the Nile River, especially Sudan [14, 15].disease [5, 6]. Alum reaction with water alkalinity reduces
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